I been having sharp stabbing pains in my head for about a month now. I thought it may have had something to do with the fact that I when I was in labor a month ago and gave birth to my son i had complications ( not to serious ) with my epidural) but then i started experiencing heart palpitation and i found out that i was suffering from caffeine withdrawal. I always been addicted to caffeine and since i couldn't drink any while i was pregnant after i had the baby i just went crazy. though headaches are one on the symptoms of caffeine withdrawal i'm still skeptical